We stock the most reliable thermocouple wire and cable for optimal performance of thermocouple sensors in an array of configurations. Made to stringent material standards, our thermocouple-grade wire offers the top choices in alloy wire type, size, protection and insulation.
A thermocouple wire is a duplex wire, meaning two insulated wires of different materials are in one sheath. Each ANSI thermocouple type is comprised of a specific wire pairing that generates signals.
For example, Type J cable combines iron and constantan wires. Other commonly deployed wiring is identified as E, K, and T. Duplex insulation is color coded according to ANSI MC 96.1-1982.
Choose the insulation materials that deliver industrial features – from high temperature capability to optimal noise rejection. Materials are dictated by the thermocouple type. The K type Thermocouple and J type Thermocouple type are the most popularly used types. Durable fiberglass is used in general and high temperature applications. Economical PVC-insulated wire offers flexibility and affordability. Our most popular insulated wiring categories include:
- Fiberglass: Features braided fiberglass insulation for intense heat protection, with maximum temperature of 900°F and a stainless steel over-braid option.
- FEP (Teflon): Insulation for up to 400°F max temperature. Moisture resistance available.
- PVC: Polymer insulation for up to 220°F.
- Multi-conductor cable
Our wiring insulation materials include fiberglass, FEP and PVC. Braided fiberglass exterior insulation serves as a high intensity heat shield in a range of applications. Our fiberglass thermocouple-grade wire withstands temperatures up to 900°F.
Order it in Type J and K, with color coding for fast identifications. We make it easier to utilize stock wiring to fabricate assemblies or connect an assembly to devices, such as a temperature controller. Quickly coordinate your sensing device type to wire type. Examples of our 20-gauge wire, J and K wire include:
Order our best wiring with fiberglass, Teflon or PVC insulation. When it comes to thermal system accessories, Hi-Watt has it all! Contact us to learn about the additional wire types we have ready for your installations.
Field-Proven Thermocouple Extension Wire
We offer extension wire that has been diligently tested for excellence on the job. This wire creates the sensing point for temperature measurements. It differs from standard extension wire, which extends a signal from the thermocouple to instruments.
The insulation material is a key parameter in considering which wire to use. Teflon and fiberglass insulation is found in our thermocouple-grade wire, while PVC wire often serves as extension-grade wire for thermocouples.Watlow Thermocouple Extension Wire